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Halla Rempt authored
This implements caching of shapes using QPixmapCache following the design of QGraphicsView's caching, with some flake-specific changes. (Flake can show different sets of shapes on different canvases, while QGraphicsView shows the same scene on different paint devices.) Current problems: * when editing, shapes get overpainted incorrectly * in kword, the margin offset seems wrong, so the page is broken off at the wrong place. * editing text doesn't work atm svn path=/branches/work/koffice-essen/; revision=1192455
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